.btn {
  padding: 13px 0;
  border-radius: 10px;
  background-color: #515bb0;
  color: #fff;
  cursor: pointer;
  border: none;
  font-size: 20px;
}

.btn[disabled] {
  opacity: .5;
}

.btn:not([disabled]):hover {
  background-color: #495190;
}

.btn.btn-red {
  background-color: #ff2400;
}

.btn.btn-red:not([disabled]):hover {
  background-color: #dc2507;
}

.btn.btn-green {
  background-color: #1fb800;
}

.btn.btn-green:not([disabled]):hover {
  background-color: #249b0c;
}